William nash



PATENT Gruen.

WILLIAM NASH, OENEWBRITAIN, CONNECTICUT.

KNIFE-SHARPENER.

Specification forming parl of Letters Patent No. 52,587, dated February 13, 1866.

Y To all whom it may concern.'

` Be it knownthat I, WlLLIAM NAsI-I, of New Britain, in the county of Hartford and State of CoI1ne`eticut;-liave invented a new and Iluproved Knife-Sharpener; and I do hereby de y clare 'that the following is a full, clear, and .exact description..therpfrwhih will Limpie others skilled in the art .to make and use the same, reference being hadto the accompanyv -l` in gY drawings,"forming part of this speciiication, in, whichv Figure l is a side elevation ot' my invention. Fig. 2 is a top view ofthe same.

'Similar letters of reference indicate likev parts.

My invention relates to the production of a Y.new article ot' manufacture, the saine being an improved device for sharpening knives, and consisting' in the use oftwo steel or other hardnietal rolls, which are threadedas screw-s and mounted in a. suitable frame in a position to bring the sharp ed ge of the thread on one rollA between the threads of the other roll, by which I produce a neat, handy,.and eieient article torthe'purpose for which il; is intended.

'A designates the frame in which the rolls are 1nounted, and to one lend ot' which the handle'B is secured. C C are the rolls, which are composed of steel or other very hard metal,

.and which have out upon them screwthreads a, and they lareso mounted vin the traine that thethrea-d on the one roll iitsV between'ihe threads on the other roll. These threads or ridges are sharpened or cut to agood edge. Should, by .ontinual use, any parts ot' the rollers become dull, a new cutting-edge nay he this can be done by pressing the rollers upon some surface and drawing the' device 'along'. The rollers must revolve in the saune direction, or the threads, being` screwthreads, would. jam against each other.

The device is-to hel used hy drawing` .the knife between the rolls in the direction ottheir length, as shown in Fi. 1, which gives to the knife in avery short time a good cutting-edge.-

'lhis knife-sharpener is a simple device, and can he made and sold cheaply, lrnd will constitute a neat and desirable article to aceoniv pany. table-cutlery.

I'elainx as my invention and desire to secure' by Letters ,Patente The knife-sharpener herein descrihethgthe saine consist-ing of the screwfthreaded rollers C C, freine A, and handle B, arranged and combined substantially asset forth.

VILLTAMNASH..

\Vitnesses:

F. 'W1 BECKLEY, W.. W. Hon-nenn. 

